How to generate xml using builder

[tupNeupt]

I need to create the below xml using builder, how would I do it?\[code\]<rss xmlns:excerpt="http://wordpress.org/export/1.2/excerpt/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:wp="http://wordpress.org/export/1.2/"> <channel> <title>Your Site Title</title> <link>http://example.com</link> <pubDate>Tue, 02 Oct 2012 13:52:46 +0000</pubDate> <description /> <language>en-US</language> <wp:wxr_version>1.2</wp:wxr_version> <wp:author> <wp:author_id>608422065</wp:author_id> <wp:author_login>[email protected]</wp:author_login> <wp:author_email>[email protected]</wp:author_email> <wp:author_display_name><![CDATA[abc123]]></wp:author_display_name> <wp:author_first_name><![CDATA[abc123]]></wp:author_first_name> <wp:author_last_name><![CDATA[abc123]]></wp:author_last_name> </wp:author> <wp:category> <wp:cat_name><![CDATA[null - null]]></wp:cat_name> <wp:category_nicename>null-null</wp:category_nicename> <wp:category_parent /> </wp:category></channel></rss>\[/code\]